Corkscrew



FIG. 1 is a top perspective view showing my new design, in closed position;

FIG. 2 is a top plan view thereof in closed position;

FIG. 3 is a bottom plan view thereof in closed position;

FIG. 4 is a front elevational view thereof in the closed position, the rear elevational view being a mirror image;

FIG. 5 is a sidee elevational view thereof in the closed position, the side opposite being a mirror image; and,

FIG. 6 is a side elevation view thereof in open position. 

The ornamental design for a corkscrew, as shown and described. 